91416

Appears in sequences

• a(n) = a(n-1) + n*a(n-2); a(0) = a(1) = 1.at n=11A000932
• Numbers n such that { x +- 2^k : 0 < k < 4 } are primes, where x = 210*n - 105.at n=27A061671
• a(n) = ((3 + sqrt(7))^n + (3 - sqrt(7))^n)/2.at n=7A146963
• Number of n X n symmetric 0..4 arrays with no element equal to the sum or difference mod 5 of any two of its horizontal and vertical neighbors.at n=4A193783